EasyManua.ls Logo

Sony STR-DB825 - User Manual

Sony STR-DB825
46 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
– 1 –
MICROFILM
AEP Model
UK Model
SPECIFICATIONS
SERVICE MANUAL
FM STEREO/FM-AM RECEIVER
STR-DB725/DB825
— Continued on next page —
Photo: STR-DB825
Question and Answer IconNeed help?

Do you have a question about the Sony STR-DB825 and is the answer not in the manual?

Sony STR-DB825 Specifications

General IconGeneral
Number of Channels5.1
Speaker load impedance8 ohms
Video ConnectionsComposite, S-Video
Power Output100 W per channel into 8 ohms
Tuning rangeFM, AM
Frequency Response10 Hz - 100 kHz
Input Sensitivity200 mV
OutputSpeaker terminals
Digital inputsOptical, Coaxial

Summary

Receiver Specifications

Amplifier Specifications

Details power output, surround modes, and frequency response for the amplifier section.

Input Specifications

Lists sensitivity and impedance for various audio and video inputs.

Output Specifications

Details voltage and impedance for audio outputs and headphone compatibility.

Service Manual Servicing Notes

Factory Set Mode Procedure

Restores the unit to its factory default settings.

Initialization Mode Procedure

Erases all preset settings and returns the unit to its initial state.

Indicator and LED Lighting Check

Verifies the functionality of the fluorescent indicator tube and LEDs.

Key Input Check Mode

Mode for checking the functionality of all key inputs on the unit.

Front Panel Component Identification

Location of Parts and Controls

Identifies and describes the various parts and controls on the front panel.

Circuit Board Layout Diagrams

Circuit Board Placement Overview

Illustrates the physical placement of various circuit boards within the receiver.

System Block Diagrams

Main Section Block Diagram

Shows the overall signal flow and functional blocks of the main audio processing section.

Power Section Block Diagram

Illustrates the power supply and distribution system within the receiver.

Video Input Section Schematics

Video Input Circuit Schematic

Detailed schematic of the video input signal processing circuits.

Video Input Section Printed Wiring Boards

Video Input PWB Component Layout

Shows the component layout for the video input circuitry.

Input Section Printed Wiring Boards

Input Section PWB Component Layout

Illustrates the component placement for the input signal processing circuits.

S-Video Section Schematics

S-Video Circuit Schematic

Detailed schematic of the S-video signal processing circuits.

S-Video Section Printed Wiring Boards

S-Video PWB Component Layout

Shows the component layout for the S-video signal processing circuitry.

Speaker Section Schematics

Speaker Output Circuit Schematic

Detailed schematic for the speaker output circuits and protection relays.

Speaker Section Printed Wiring Boards

Speaker Output PWB Component Layout

Illustrates the component placement for the speaker output circuitry.

Display Section Printed Wiring Boards

Display PWB Component Layout

Shows the component layout for the display control circuitry.

Display Section Schematics

Display Circuit Schematic

Detailed schematic of the display control and indicator circuits.

Front Panel Schematics

Front Panel Control Board Schematics

Schematics for various control boards on the front panel, including SW, SP SW, Balance, Vol, Function.

Front Panel Printed Wiring Boards

Front Panel Control PWB Layouts

Component layout diagrams for front panel control boards like SW, SP SW, Balance, Vol, Function.

Power Amplifier Section Schematics

Power Amp Circuit Schematic

Detailed schematic of the main power amplifier circuits for all channels.

Power Amplifier Section Printed Wiring Boards

Power Amp PWB Component Layout

Component layout diagram for the main power amplifier circuitry.

Transformer Section Schematics

Transformer and Standby Circuit Schematic

Detailed schematic of the power transformer and standby circuit.

Transformer Section Printed Wiring Boards

Transformer and Standby PWB Layout

Component layout diagram for the power transformer and standby circuit.

Integrated Circuit Block Diagrams

Key IC Internal Block Diagrams

Internal block diagrams for key integrated circuits used in the receiver.

Integrated Circuit Pin Functions

IC103 uPD780208 GF Pinout Details

Detailed pin functions and descriptions for the uPD780208GF IC on the Display Board.

Exploded Views: Case and Back Panel

Case and Back Panel Assembly Diagram

Exploded view illustrating the assembly of the unit's case and back panel components.

Exploded Views: Front Panel

Front Panel Assembly Diagram

Exploded view showing the components and assembly of the unit's front panel.

Exploded Views: Chassis Section

Chassis Assembly Diagram

Exploded view illustrating the main chassis components and their arrangement.

Related product manuals